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United States Customs Tariff for HS Code 291639

Acids; aromatic monocarboxylic acids, and their anhydrides, halides, peroxides, peroxyacids and their derivatives, other than benzoic acid, its salts and esters, benzoyl peroxide and benzoyl chloride, phenylacetic acid and its salts

USITC 2026 HTS Revision 19

26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.

Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.

Official schedule and source documentation

Official entries matching 291639

2916.39.03.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

Benzoic anhydride;tert-Butyl peroxybenzoate;p-Nitrobenzoyl chloride; 2-Nitro-m-toluic acid; and 3-Nitro-o-toluic acid

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 40.5%
Official source for this code

2916.39.04.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

m-Chloroperoxybenzoic acid; andp-Sulfobenzoic acid, potassium salt

Source units: kg

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
15.4¢/kg + 40.5%
Official source for this code

2916.39.06.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

Cinnamic acid

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.08.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

4-Chloro-3-nitrobenzoic acid

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg +40.5%
Official source for this code

2916.39.12.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

4-Chloro-3,5-dinitrobenzoic acid and its esters

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.15.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

Ibuprofen

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 47.5%
Official source for this code

2916.39.16.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

4-Chlorobenzoic acid

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.17.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other:

2,2-Dichlorophenylacetic acid, ethyl ester; andm-Toluic acid

Source units: kg

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.21.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other: › Other:

Odoriferous or flavoring compounds

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 58%
Official source for this code

2916.39.46.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other: › Other: › Other:

Products described in additional U.S. note 3 to section VI

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.77.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other: › Other: › Other: › Other:

Esters of phenylacetic acid

Source units: kg

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
15.4¢/kg + 57%
Official source for this code

2916.39.79.00

Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: › Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: › Other: › Other: › Other: › Other:

Other

Source units: kg

Column 1 — General
6.5%
Column 1 — Special (eligibility required)
Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
Column 2
15.4¢/kg + 57%
Official source for this code
WITS 2023 historical MFN average

Reported average: 4.875%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 12 of 12. Excluded from the average: 0.

Reported ad-valorem range: 0%–6.5%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 291639: 4.88% (2023 MFN average)

The source reports an indicative HS6 MFN average of 4.88% (2023 MFN average) for Acids; aromatic monocarboxylic acids, and their anhydrides, halides, peroxides, peroxyacids and their derivatives, other than benzoic acid, its salts and esters, benzoyl peroxide and benzoyl chloride, phenylacetic acid and its salts.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

Browse chapter 29Search parent HS 291639Request import report

Customs tariff summary

Country
United States
HS / tariff code
291639
Description
Acids; aromatic monocarboxylic acids, and their anhydrides, halides, peroxides, peroxyacids and their derivatives, other than benzoic acid, its salts and esters, benzoyl peroxide and benzoyl chloride, phenylacetic acid and its salts
Chapter
29 —
Heading
2916
Subheading
291639
Indicative MFN HS6 average
4.88% (2023 MFN average)
VAT / tax
Check local VAT and excise rules for the import destination.
Unit / basis
Not listed in this tariff line
Source / vintage
WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

4.88% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code
291639
Chapter
29 —
Heading
2916
Subheading
291639

Compare HS code 291639 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 291639United Arab EmiratesSearch parent HS 291639OmanSearch parent HS 291639QatarSearch parent HS 291639KuwaitSearch parent HS 291639BahrainSearch parent HS 291639

Related HS Codes (Heading 2916)

HS CodeDescriptionDuty
291611Acids; unsaturated acyclic monocarboxylic acids; acrylic acid and its salts4.20% (2023 MFN average)WITS 2023 historical MFN average
291612Acids; unsaturated acyclic monocarboxylic acids; esters of acrylic acid5.10% (2023 MFN average)WITS 2023 historical MFN average
291613Acids; unsaturated acyclic monocarboxylic acids; methacrylic acid and its salts4.20% (2023 MFN average)WITS 2023 historical MFN average
291614Acids; unsaturated acyclic monocarboxylic acids; esters of methacrylic acid1.85% (2023 MFN average)WITS 2023 historical MFN average
291615Acids; unsaturated acyclic monocarboxylic acids; oleic, linoleic or linolenic acids, their salts and esters5.45% (2023 MFN average)WITS 2023 historical MFN average
291616Acids; unsaturated acyclic monocarboxylic, cyclic monocarboxylic, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives, binapacryl (ISO)3.70% (2023 MFN average)WITS 2023 historical MFN average
291619Acids; unsaturated acyclic monocarboxylic, cyclic monocarboxylic, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives, n.e.c. in item no. 2916.14.28% (2023 MFN average)WITS 2023 historical MFN average
291620Acids; cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives1.85% (2023 MFN average)WITS 2023 historical MFN average
291631Acids; aromatic monocarboxylic acids, benzoic acid, its salts and esters6.50% (2023 MFN average)WITS 2023 historical MFN average
291632Acids; aromatic monocarboxylic acids, benzoyl peroxide and benzoyl chloride6.50% (2023 MFN average)WITS 2023 historical MFN average
291634Acids; aromatic monocarboxylic acids, phenylacetic acid and its salts4.88% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.